Cudrefin (French pronunciation: [kydʁəfɛ̃]) is a municipality in the district of Broye-Vully in the canton of Vaud in Switzerland.

[3] Cudrefin has an area, as of 2009[update], of 15.82 square kilometers (6.11 sq mi).

Of the rest of the land, 1.27 km2 (0.49 sq mi) or 8.0% is settled (buildings or roads), 0.08 km2 (20 acres) or 0.5% is either rivers or lakes and 1.3 km2 (0.50 sq mi) or 8.2% is unproductive land.

The new coat of arms includes the symbols of both Cudrefin (trout) and the former municipality of Champmartin (crayfish).

[9] Most of the population (as of 2000[update]) speaks French (638 or 75.6%), with German being second most common (170 or 20.1%) and Portuguese being third (14 or 1.7%).

[8] The age distribution, as of 2009[update], in Cudrefin is; 173 children or 14.5% of the population are between 0 and 9 years old and 129 teenagers or 10.8% are between 10 and 19.

[9] The historical population is given in the following chart:[3][13] The Fountain of Justice is listed as a Swiss heritage site of national significance.

The entire village of Montet is part of the Inventory of Swiss Heritage Sites.

[14] In the 2007 federal election the most popular party was the SVP which received 31.32% of the vote.

In the federal election, a total of 270 votes were cast, and the voter turnout was 37.8%.

[9] There were 450 residents of the municipality who were employed in some capacity, of which females made up 42.2% of the workforce.

The number of jobs in the primary sector was 50, of which 48 were in agriculture, 1 was in forestry or lumber production and 1 was in fishing or fisheries.

In the tertiary sector; 25 or 24.5% were in wholesale or retail sales or the repair of motor vehicles, 4 or 3.9% were in the movement and storage of goods, 30 or 29.4% were in a hotel or restaurant, 3 or 2.9% were in the information industry, 2 or 2.0% were technical professionals or scientists, 4 or 3.9% were in education.

[9] From the 2000 census[update], 182 or 21.6% were Roman Catholic, while 482 or 57.1% belonged to the Swiss Reformed Church.

In the Vaud cantonal school system, two years of non-obligatory pre-school are provided by the political districts.

The canton's primary school program requires students to attend for four years.